

.sy{
	width: 1100px;
	height: 55px;
	background: black;
}
.sy .pc{
	float: left;
	width: 700px;
	height: 55px;
	background:url(../img/QQ截图20180328103031.png);
}
.sy .a{
	float: left;
	width: 180px;
	height: 55px;
	background:rgb(37,41,46);
}
.sy  ul li{
	padding-left: 20px;
	color: rgb(81,102,102);
	list-style:  none;
	float: left;
}
.sy .b{
	float: left;
	width:220px;
	height: 55px;
	background:rgb(37,41,46);
}

.sy .b ul li{
	color: rgb(81,102,102);
	list-style:  none;
	float: left;
	
}
